Insanity is doing the same thing over and over again and expecting different results, right? Well, I’d argue it’s not as long as you’re successful at doing that same thing over and over again, like Jess Greenberg is with her cover songs and ever-present boobs. Her formulaic approach is the furthest thing from insane I’ve ever seen. Hell, doing these songs in a turtleneck…now that would be fucking insanity. Here’s her latest cover, which is Metallica’s “Enter Sandman.”